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Pediatric Neurology

Beyond Seizures: Neurodevelopment and Your Care Team

At a Glance

Dravet syndrome affects brain development and movement independent of seizures. Supporting a child with Dravet requires a multidisciplinary care team to manage non-seizure symptoms like crouch gait, speech delays, and behavioral challenges, ensuring the best possible quality of life.

While the seizures in Dravet syndrome are the most immediate concern, it is important to understand that Dravet is a comprehensive encephalopathy. This means the genetic mutation (SCN1A) affects the brain’s development and the body’s movement independent of how many seizures a child has [1][2]. Managing the “whole child” requires moving beyond just the neurology office and building a dedicated team of specialists [3][4].

The Impact on Movement: Understanding “Crouch Gait”

As children with Dravet syndrome grow, their way of walking (their gait) often changes. This typically becomes noticeable in the preschool or elementary years [3].

  • Crouch Gait: This is a specific walking pattern where the child walks with their knees and hips constantly flexed (bent) [5]. It is often accompanied by gait instability or a lack of coordination [6].
  • Orthopedic Issues: Over time, this walking style can lead to secondary issues like pes planus (flat feet) or misalignment of the ankles and knees [6].
  • Why it happens: This isn’t just “weakness.” The mutation affects the signals the brain sends to the muscles to coordinate complex movements [5][6]. Note that physical therapy helps significantly to delay and manage crouch gait, though it often cannot be entirely prevented.

Neurodevelopment and Behavior

In the first year, many babies with Dravet meet their milestones on time. However, a developmental plateau often begins in the second year of life [7].

  • Cognitive Profile: Most children will experience some level of intellectual disability, though the severity varies widely from child to child [8]. It is important to know that even if seizures are well-controlled, some cognitive challenges often remain because of the underlying genetic cause [9][1].
  • Speech and Language: Delays in expressive language (speaking) are very common [3]. Some children may benefit from AAC (Augmentative and Alternative Communication) tools, like picture boards or tablets, to help them express their needs.
  • Behavioral Challenges: Many families navigate symptoms of ADHD (hyperactivity and impulsivity) or traits associated with Autism Spectrum Disorder [10][11]. These are biological parts of the syndrome, not a result of “bad parenting.”
  • Sleep Disruptions: Severe sleep issues, including frequent night waking and difficulty falling asleep, are heavily reported in Dravet syndrome and deeply impact the quality of life for both the child and their caregivers [10].

Building Your Multi-Disciplinary Team

Because Dravet affects so many systems, your “Care Ecosystem” should include several key specialists [4][12]:

  1. Pediatric Epileptologist: The “captain” of the medical team who manages medications and seizure safety.
  2. Physical Therapist (PT): Essential for monitoring gait, recommending braces (orthotics), and maintaining muscle strength to delay and manage crouch gait [5].
  3. Occupational Therapist (OT): Focuses on fine motor skills, like feeding and dressing, and helps manage sensory sensitivities.
  4. Speech-Language Pathologist (SLP): Works on communication skills and can evaluate for safe swallowing if needed.
  5. Neuropsychologist: Conducts specialized testing to understand your child’s unique learning style and help tailor their IEP (Individualized Education Program) for school.
  6. Dietitian: Critical if your child is using the Ketogenic Diet to ensure they are getting proper nutrition for growth [13].

By assembling this team early, you aren’t just treating a diagnosis—you are supporting your child’s ability to navigate the world with as much independence and joy as possible.

Common questions in this guide

What is crouch gait in Dravet syndrome?
Crouch gait is a walking pattern where a child walks with their knees and hips constantly bent. It is caused by the underlying genetic mutation affecting how the brain coordinates muscle movement, and physical therapy is essential to help manage it.
Will my child's cognitive development improve if their seizures are controlled?
While controlling seizures is crucial for safety, some cognitive challenges typically remain. The underlying genetic mutation directly affects brain development, which can impact learning and behavior independent of seizure frequency.
Are behavioral issues common in children with Dravet syndrome?
Yes, it is very common for children to experience symptoms of ADHD, impulsivity, or traits associated with Autism Spectrum Disorder. These behaviors are biological parts of the syndrome and can be supported with tailored therapies and a neuropsychologist.
Who should be on our Dravet syndrome care team?
Because Dravet affects multiple body systems, your team should extend beyond a pediatric epileptologist to include a physical therapist, occupational therapist, speech-language pathologist, neuropsychologist, and potentially a specialized dietitian.

Questions to Ask Your Doctor

Curated prompts to bring to your next appointment.

  1. 1.What is your experience in managing the non-seizure aspects of Dravet, such as crouch gait or behavioral changes?
  2. 2.How do you coordinate care between our neurologist, physical therapist, and school system?
  3. 3.Can you help us set a baseline for our child's development so we can track changes over time?
  4. 4.Are there specific behavioral therapists you recommend who have experience with the hyperactivity and attention issues common in Dravet?
  5. 5.What signs of orthopedic misalignment (like foot issues) should we be looking for at home?

Questions For You

Tap a prompt to share your answer — we'll use it plus this page's context to start a tailored conversation.

References

References (13)
  1. 1

    A two-hit story: Seizures and genetic mutation interaction sets phenotype severity in SCN1A epilepsies.

    Salgueiro-Pereira AR, Duprat F, Pousinha PA, et al.

    Neurobiology of disease 2019; (125()):31-44 doi:10.1016/j.nbd.2019.01.006.

    PMID: 30659983
  2. 2

    Predicting the impact of sodium channel mutations in human brain disease.

    Noebels JL

    Epilepsia 2019; (60 Suppl 3()):S8-S16 doi:10.1111/epi.14724.

    PMID: 31904123
  3. 3

    Dravet Syndrome: An Overview.

    Anwar A, Saleem S, Patel UK, et al.

    Cureus 2019; (11(6)):e5006 doi:10.7759/cureus.5006.

    PMID: 31497436
  4. 4

    Diagnosis, epilepsy treatment and supports for neurodevelopment in children with Dravet Syndrome: Caregiver reported experiences and needs.

    Soto Jansson J, Bjurulf B, Dellenmark Blom M, et al.

    Epilepsy & behavior : E&B 2024; (151()):109603 doi:10.1016/j.yebeh.2023.109603.

    PMID: 38168600
  5. 5

    Treatment Strategies for Dravet Syndrome.

    Knupp KG, Wirrell EC

    CNS drugs 2018; (32(4)):335-350 doi:10.1007/s40263-018-0511-y.

    PMID: 29594870
  6. 6

    Foot-floor contact pattern in children and adults with Dravet Syndrome.

    Wyers L, Di Marco R, Zambelli S, et al.

    Gait & posture 2021; (84()):315-320 doi:10.1016/j.gaitpost.2020.12.030.

    PMID: 33445140
  7. 7

    Deconstructing Dravet syndrome neurocognitive development: A scoping review.

    Bertuccelli M, Verheyen K, Hallemans A, et al.

    Epilepsia 2021; (62(4)):874-887 doi:10.1111/epi.16844.

    PMID: 33646591
  8. 8

    Cognitive, behavioral, and social functioning in children and adults with Dravet syndrome.

    Brown A, Arpone M, Schneider AL, et al.

    Epilepsy & behavior : E&B 2020; (112()):107319 doi:10.1016/j.yebeh.2020.107319.

    PMID: 32858363
  9. 9

    Dravet syndrome: Early electroclinical findings and long-term outcome in adolescents and adults.

    Darra F, Battaglia D, Dravet C, et al.

    Epilepsia 2019; (60 Suppl 3()):S49-S58 doi:10.1111/epi.16297.

    PMID: 31904122
  10. 10

    Autism spectrum disorder and cognitive profile in children with Dravet syndrome: Delineation of a specific phenotype.

    Ouss L, Leunen D, Laschet J, et al.

    Epilepsia open 2019; (4(1)):40-53 doi:10.1002/epi4.12281.

    PMID: 30868114
  11. 11

    Tauopathy and Epilepsy Comorbidities and Underlying Mechanisms.

    Hwang K, Vaknalli RN, Addo-Osafo K, et al.

    Frontiers in aging neuroscience 2022; (14()):903973 doi:10.3389/fnagi.2022.903973.

    PMID: 35923547
  12. 12

    From genotype to phenotype in Dravet disease.

    Gataullina S, Dulac O

    Seizure 2017; (44()):58-64 doi:10.1016/j.seizure.2016.10.014.

    PMID: 27817982
  13. 13

    Eating habits and behaviors in children with Dravet syndrome: A case-control study.

    Laliberté A, Siafa L, Soufi A, et al.

    Epilepsia 2025; (66(1)):e1-e6 doi:10.1111/epi.18179.

    PMID: 39503590

This page provides educational information about the neurodevelopmental and physical impacts of Dravet syndrome. It is not a substitute for professional medical advice from your child's pediatric epileptologist or care team.

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